Advances in tissue engineering technology for kidney regeneration and construction.

Tissue engineering is a highly interdisciplinary research field aiming at repairing, replacing, and regenerating the defective tissues. Over several decades of research, a variety of methods have been developed. The technical methods can be categorized into scaffold-based and scaffold-free strategies. In this mini review, the discussion will be focused on the technical methods of tissue engineering for kidney regeneration and construction.

Exploration of an Inflection Point of Ventilation Parameters with Anaerobic Threshold Using Strucchange.

(1) Background: When measuring anaerobic work threshold (AT), the conventional V-slope method includes the subjectivity of the examiner, which cannot be eliminated completely. Therefore, we implemented an engineering method using strucchange to objectively search for the inflection point of AT. (2) Methods: Seventeen subjects (15 men and 2 women) were included in the study. The subjects rode an ergometer and performed a ramp load test for 18 min and 30 s. (3) Results: In VE (Ventilation), 11 out of 12 subjects had the same results with 95% confidence intervals for the AT by the strucchange and respiratory metabolic apparatus. In VCO2 (Carbon dioxide emissions), 9 out of 12 subjects had the same results with 95% confidence intervals for the AT with the strucchange and respiratory metabolic apparatus. In VE, 3 out of 12 subjects showed the same results for respiratory metabolic analysis and the AT by the V-slope method. In VCO2, 3 out of 12 subjects showed the same results for the respiratory metabolic analysis and AT by the V-slope method in VCO2. (4) Conclusions: Strucchange was more objective and significant in identifying the AT than the V-slope method.